Yu Yi (305–345), courtesy name Zhigong, was a Chinese calligrapher and military general of the Jin dynasty (266–420). He was a member of the prestigious Yu clan of Yingchuan as the younger brother of the powerful Jin minister, Yu Liang. After Yu Liang died in 340, Yu Yi inherited his military positions, and with his other brother Yu Bing, who handled court affairs, they became a prominent political force during their time. As a commander, Yu Yi led a northern expedition from 343 to 344 against Later Zhao in the north and briefly fought Cheng Han in the west before his untimely death in 345. Yu Yi's passing caused his clan to go into a temporary decline as his former subordinate, Huan Wen, woud seize his sons' power away shortly after.